Category Archives: Water Heating

Zero Energy Hot Water – Two Options

Hot water has long been an intractable energy hog in efficient homes.  With the new generation of heat pump water heaters there is finally a more affordable alternative to solar hot water: a technology handicapped by weather, copper prices and … Continue reading

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Drain Water Heat Recovery

One of my favorite home energy devices is the GFX, a piece of plumbing that recovers energy from drain water and diverts it back to your water heater (or sometimes to the cold side of the shower).  The waste water … Continue reading

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